0000000000933835

AUTHOR

Zakaria El Kebbaj

showing 3 related works from this author

Immunoaffinity purification and characterization of mitochondrial membrane-bound D-3-hydroxybutyrate dehydrogenase from Jaculus orientalis.

2008

Abstract Background The interconversion of two important energy metabolites, 3-hydroxybutyrate and acetoacetate (the major ketone bodies), is catalyzed by D-3-hydroxybutyrate dehydrogenase (BDH1: EC 1.1.1.30), a NAD+-dependent enzyme. The eukaryotic enzyme is bound to the mitochondrial inner membrane and harbors a unique lecithin-dependent activity. Here, we report an advanced purification method of the mammalian BDH applied to the liver enzyme from jerboa (Jaculus orientalis), a hibernating rodent adapted to extreme diet and environmental conditions. Results Purifying BDH from jerboa liver overcomes its low specific activity in mitochondria for further biochemical characterization of the e…

lcsh:Animal biochemistryMESH : AgedMESH : RodentiaMESH: RodentiaMESH: Base SequenceBiochemistryMESH: Lipid PeroxidationMESH : Information ServicesAntigen-Antibody ReactionsMESH: Health EducationEpitopesMESH: OrganizationsMESH: LibrariesMESH: Antigen-Antibody Reactionslcsh:QD415-436MESH: AnimalsMESH : OrganizationsMESH : Physician's RoleMESH: Bacterial ProteinsImmunosorbent Techniqueschemistry.chemical_classificationMESH: Conserved SequenceMethodology ArticleMESH : Computer Communication NetworksMESH: Chromatography AffinityMESH : Pseudomonas aeruginosaMESH : Chromatography AffinityMESH : Immunosorbent TechniquesMESH: Ethnic GroupsMESH : Ethnic GroupsMESH: EpitopesMESH : Patient SatisfactionMESH : United StatesMESH: MitochondriaMESH : Antigen-Antibody ReactionsMolecular Sequence DataMESH : Hydroxybutyrate DehydrogenaseMESH: Sequence AlignmentRodentiaMESH: Information ServicesMESH : Epitopeslcsh:BiochemistryMESH : Mitochondrial MembranesBacterial ProteinsMESH : Conserved SequenceComplementary DNAMESH : LibrariesMolecular Biology[ SDV.BBM ] Life Sciences [q-bio]/Biochemistry Molecular BiologyMESH: Immunosorbent TechniquesMESH: Molecular Sequence DataMESH: HumansMESH : Consumer ParticipationMESH : HumansMESH: AdultMESH: Patient SatisfactionMESH: Hydroxybutyrate DehydrogenaseMESH: Consumer ParticipationchemistryLipid PeroxidationMESH: FemaleMESH: LiverMESH : Sequence Analysis DNAMESH: Continental Population GroupsMESH: Sequence Analysis DNAMESH : Molecular Sequence DataDehydrogenaseChromatography AffinityMESH: Mitochondrial MembranesMESH: Antibodies BacterialMESH : Bacterial ProteinsMESH : FemaleMESH: Computer Communication NetworksConserved SequenceMESH: AgedbiologyMESH : Lipid PeroxidationMESH : Sequence AlignmentMESH: Physician's RoleMESH : AdultAntibodies BacterialMitochondriaAmino acidLiverBiochemistryMitochondrial MembranesPseudomonas aeruginosaMESH: Pseudomonas aeruginosaMESH : MitochondriaMESH : Mass MediaMESH: Mass MediaMESH : MaleHydroxybutyrate DehydrogenaseAffinity chromatographyMESH : Health Education[SDV.BBM] Life Sciences [q-bio]/Biochemistry Molecular BiologyMESH: United StatesAnimals[SDV.BBM]Life Sciences [q-bio]/Biochemistry Molecular BiologyMESH : Antibodies Bacteriallcsh:QP501-801Jaculus orientalisMESH : Continental Population GroupsBase SequenceMESH : LiverSequence Analysis DNAbiology.organism_classificationMolecular biologyMESH: MaleEnzymePolyclonal antibodiesbiology.proteinMESH : Base SequenceNAD+ kinaseMESH : AnimalsSequence Alignment
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Peroxisome proliferator-activated receptors as regulators of lipid metabolism; tissue differential expression in adipose tissues during cold acclimat…

2004

Brown (BAT) and white (WAT) adipose tissues play a key role in the body energy balance orchestrated by the central nervous system. Hibernators have developed a seasonal obesity to respond to inhospitable environment. Jerboa is one of the deep hibernator originated from sub-desert highlands. Thus, this animal represents an excellent model to study cold adaptation mechanism. We report that the adipogenic factor PPARgamma exhibits a differential expression between BAT and WAT at mRNA level. A specific induction was only seen in WAT of pre-hibernating jerboa. Interestingly, PPAR beta/delta is specifically induced in BAT and brain of pre-hibernating jerboa, highlighting for the first time the po…

Hibernationmedicine.medical_specialtyAcclimatizationPeroxisome Proliferator-Activated ReceptorsPeroxisome proliferator-activated receptorAdipose tissueRodentiaWhite adipose tissueBiologyBiochemistryAcyl-CoA DehydrogenaseIon ChannelsMitochondrial ProteinsClofibric AcidInternal medicineHibernationBrown adipose tissuemedicineAcyl-CoA oxidaseAnimalsRNA MessengerUncoupling Protein 1chemistry.chemical_classificationFibric AcidsMembrane ProteinsGeneral MedicineLipid MetabolismLipidsMitochondriaCold TemperatureEndocrinologymedicine.anatomical_structurechemistryAdipose TissueGene Expression RegulationPhospholipasesCiprofibrateAcyl-CoA OxidaseCarrier ProteinsEnergy MetabolismOxidoreductasesThermogenesismedicine.drugBiochimie
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D-3-hydroxybutyrate oxidation in mitochondria by D-3- Hydroxybutyrate dehydrogenase in Tetrahymena pyriformis

2009

International audience; Tetrahymena pyriformis a ciliated protozoan, is considered a good indicator of water pollution. However its energy supply is poorly understood. This work was focused on the metabolism of hydroxybutyrate through the study of the membrane bound mitochondrial NAD+-dependent D-3-hydroxybutyrate dehydrogenase (EC. 1.1.1.30) (BDH), a ketone body catalysing enzyme involvedin the interconversion of D-3-hydroxybutyrate to acetoacetate. Due to lack of informations, the physico-chemical properties and kinetic parameters of the enzyme were examined. The results are the following: 1) D-3-hydroxybutyrate is a good substrate for mitochondria. 2) The enzyme catalytic process follows…

[SDV.BA] Life Sciences [q-bio]/Animal biology[SDV.BA]Life Sciences [q-bio]/Animal biology[ SDV.BA ] Life Sciences [q-bio]/Animal biology
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